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Re: 87 Porsche, emissions, surging idle
Posted to Technical Discussion Forum on 5/11/2005 1 Reply

hmm... sounds like the ecm just needed it's memory jogged? Probably a little too much resistance in the HTS circuit splice that you mentioned. Maybe the ECM can re-learn the values? Maybe to compensate for old out of range sensor to keep emissions low? Maybe a... Login to read more.

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